On this page, is this the cloyes double roller that you performance junkies use???

http://www.jegs.com/cgi-bin/ncommerc...40&prmenbr=361


part 220-9-3137 is what I'm thinking. Is this the correct one?? Will work on the 2.8,3.1,3.4???

 

It will work, but the question is: does the timing chain housing need to be modified to make it fit?

 

For the $90 for the chain, you can buy the chain from Dynagear & get a complete engine gasket kit & probably the oil pump spring & the oil housing gasket & chain tensioner, too.
The double roller ain't gonna make any more horsepower than the dynagear chain nor last any longer or shorter.

 

Are the two made of the same quality?

 

i already have the cloyes double roller chain in my car. every little bit helps with these motors.

 

v6 camaro, is that the one you have?? did you have to modify anything?? that is the kinda response I was looking for :hail: :hail:

 

I want to know if he had to modify anything too, because that is the timing chain I want.

 

For a rebuild it's perfect.
You will not gain a single bit more HP by using a Cloyes compared to the Dynagear IN THIS INSTANCE for our 60* engines.
IF a V-8, maybe COULD gain an extra 2-3 HP IF THAT OR ANY HP DIFFERENCE.
Hey for $30 compared to $90 you decide
And engine longevity is gonna the same

 

I am assuming that the Dynagear one is a double roller too?

 

Honest Don't recall.
Maybe I've got a pic, but...
In all honesty
Spoke to a TRW auto engineer once.
Got him on the phone. He designed my LT-1 engine I'm building for my ride (1867 RS/SS Camaro Convert 4-speed) from the TRW catalog.
I then ordered the parts from vendors.
His quote.
Link belt vs. double roller chains....
LONGEVITY Linkbelt designs are longer lasting (milage) to true tolerences than a double roller timing chain.
Loss of HP? None if any!
COMPARED TO A Double Roller.
A Double Roller MAY gain ya 3HP IF THAT.
(This engineer was NOT saying you will always gain using a D.R. chain).
A D.R. chain will not last as long, milage, or stay at true tolerences, as a Linkbelt timing chain.

That's the reason the OEMs used Link Belt chains on the engines from the factory. Plus the Link Belt chain is quieter.

Seriously,
ANYTIME YA SWAP TIMING CHAINS AND PLAY WITH IGNITION STUFF.
9 times outta 10 you'll gain back HP & possibly increase, from the point you were at before you did this project.

Besides,,,,, $30 for a "good fix" compared to $90 for the "same good fix"?
You do your own math...

Most people here always bitch about spending too much & not getting high HP results.
This chain issue is another example of that.......

Previously TRW also made a timing chain.
Dynagear is one of the latest manufactures..
Besides, new steel gears, beautiful chain, back to smooth idle, increase in seat of pants power & better gas milage?
Spend the extra $60 on the labor to install the chain! Or just pocket it.
MAKE SURE
you buy a balancer snout sleeve.
$4 & reduces to zero the possible chance for a leak from balancer....

 

Wow, you have an 1867 RS/SS Camaro? I didn't know they made those back then.



I don't care if I gain any horsepower since I only use my car to drive here and there going the speed limit. I just want a timing chain that is efficient and won't break on me on the rare occassions when I drive in the 5500 rpm range. I would rather spend $30 opposed to $90 if the results and durability are the same.

 

You are making a wise choice.
When ya see the product you'll feel much better.
Facts in hand usually beat talk on the street.
Thanks for catching my typo!

 

So is the cloyes stronger then others, or all the same?? I just want one that will take the abuse I will be throwing at it, cause yes it will get hot rodded, and possibly turbo or supercharger later, or/and NOS.

 

Cloyes #9-3137 looks like the # I remember. The dual-roller chain uses less friction than a stock single link chain, and is supposed to last longer because it streches less (dual chain). But, the stock tensioner won't fit. Because the gears accept a roller chain, the teeth are larger, and rub the stock tensioner. So the Cloyes book says to remove the tensioner and leave it off. I did that back at 180,000 miles, it's been about 3 years and I'm over 240,000 miles right now, and no problems. I've always heard that the dual roller chain is stronger... it's a popular hot rod item for chevy v8's, but I haven't talked to any engineers about it. I would say though that the main reason they're used on stock motors is because of their low cost to an auto manufacturer. Any timing chain is "supposed to be" replaced at 30,000 miles, anyway.

And ya don't need a balancer snout sleeve if the front seal hasn't cut a groove into the balancer snout. But you might want to replace the balancer ($60 new) if the rubber isolation ring is starting to slip out of position. All 2.8/3.1 balancers are neutral balanced, so you don't have to worry about getting one for your exact year. (Mine came from a junkyard '85 Firebird.) But tapping a balancer sleeve on wouldn't hurt anything...

 

I think I will stay with a single chain. I don't like to have anything modified to fit when it comes to engine, besides, I don't abuse my engine and I take car of it on a regular basis, which might explain why I have never broken a single engine part. Those darn plastic emissions lines are the only part of the engine that I have broken.

 

And like Karl said, the increase in horsepower will be minimal with the Cloyes. It should keep the timing accurate longer, but the only way you'll notice an improvement is if your old chain was so stretched out that the valve timing was getting messed up. I went with the Cloyes because I was after every little bit of HP and timing accuracy I could get

 

Is that the one you got tom?? No modifications needed to cover??

 

No, no cover modifications... did someone say otherwise? I don't even think a v8 needs timing cover mods to run a roller chain... gear drive, sure, but not a roller chain...

 

In out V-6 instance, I can understand no need for cover work.
SOME OF THE NEWER GM MOTORS, are very close tolerences & yep, require either a dedicated usage cover or some mod for chain fitment.

 

Cover modifications was debated earlier, and I don't want any surprises.

I am doing the 2.8-3.4 swap, I wont know where the power came from. I will be abusing the engine, so I need something durable.

 

By the time you are ready to rebuild an abused engine the $30 or $90 chain will be history.

Do the math.

 

$30 regular chain +$30 regular chain +$30 regular chain=$90 Cloyes chain.

According to my calculations, I can get 3 timing chains for the price of one and after a rebuild, I will be $60 richer than the guy with the cloyes. I can do a lot with an extra $60.

 

Now, there is one Bright Financier.
Think Bicycle chain,
That is a double roller timing chain (obviously, when side by side).
Link Belt chain is the Harley Motorcycle Drive belt to rear wheel.
Both do the same job.
I'll pass the part number if ya request.
OR honestly, get what ever your local supplier offers.